A:and
B:or
C:but
— Yes, every Saturday my family and I go there to see the movies.
伏安法测电阻的接法有如图甲、乙两种接法,
按图甲接法,测得值比真实值____(填“大”或“小”)
按图乙接法,测得值比真实值____(填“大”或“小”)
日常生产、生活中化学无处不在,下列说法正确的是( )